M3 M4 M5 M6 M8 M10 M12 M14 M16 Grade 12.9 High Strength Black Carbon Steel Hexagon Hex Socket Thin Short Low Cap Screw BoltHome Improvement > Hardware2,22 USD (≈ 1,99 €)2,27 USDDisponibileSold by AliExpress WWVai al negozio